1, Is it an everyday activity?2, Is it a group or just loose-end gathering for everyone? They pay? or there is a sponsorship?3, From pics, I think it is a very group, are there any small groups in residential areas?

Here in my city, Kunming, Yunnan Province, China, there are many small groups or large groups dancing in any public places or in any parks. It is very very fking. The music is blasting, my office just 100 meters from that group, the music fks my mind all the day.